Sprite Fusion - Design your game with Sprite Fusion, the ultimate free online tilemap editor. Design 2D games with ease, direclty export to Unity Tilemap and Godot Scenes. Ideal for retro games!
IcoFX - IcoFX is an all-in-one solution for icon creation, extraction and editing.
Aseprite - Aseprite is an art program dedicated to the creation of pixel art.
VistaCreate - The VistaCreate is a free and global digital platform which is known for sharing, searching, finding, and creating great art.
LibreSprite - Free and open source program to create animated sprites.
Tiled Map Editor - Tiled is a general purpose tile map editor.